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by kevinflo 2717 days ago
I tried to do the same during a bout of extended international travel. I popped out the fi sim once to try a super cheap local unlimited data sim (some countries are great for this), only to find out afterwards that it killed the fi pairing, and that re-pairing is not possible while abroad (tried VPNs etc., no dice). Your only method to get paired again is to either fly to the states (Hawaii), or to ship the phone to someone in the states and have them ship it back. Ended up having to go months without my main cell service, although months later it did somehow pair again while I was in Japan.

Keep in mind that you'd be just as out of luck if you wanted to switch phones while traveling, like if your primary was lost or stolen. For that reason, I canceled fi immediately upon returning to the states and strongly caution anyone I know against fi for extended travel.

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Weird, I haven't had that experience -- I've switched between Fi and my work SIM several times while abroad using the chooser in my Pixel 3's settings… Did you perhaps somehow reset your eSIM?

Edit: ah, you were using a physical SIM. Mildly ironic that you'd have a worse experience "re-pairing" than with an eSIM.

Related anecdote: at 34c3 last year, I was able to activate Fi while in Germany, but 6 months later, no matter how many agents I talked to (none of whom identified being in Europe as the problem), I wasn't able to reactivate it in Europe. This was because I had paused my service and switched phones, and they apparently implemented checks to prevent activation outside the USA.

Or, I was the accidental beneficiary of the various GSM hacking going on at Congress, and it never was supposed to work in the first place.

Curious if it'd be effectual (although impractical) to use an AT&T femtocel to activate while abroad…